Rear Sprocket Sprocket 520 Size 52T Magnesium YZ125/YZ250/YZ426/YZ450F/WR250R/WR250X/WR250/WR400F

[TALON TR339R/L Rear Sprocket, Sprocket 520 size, 52T Magnesium YZ125/YZ250/YZ426/YZ450F/WR250R/WR250X/WR250/WR400F WESTWOOD] ・Made from 7075 T6 aluminum, known for its use in aircraft, offering lightweight and excellent rigidity. ・Designed and developed to improve the machine's overall balance by reducing unsprung weight, which in turn smooths the operation of the rear shock. It also features a self-cleaning grooved design to reduce resistance caused by mud and gravel between the chain and sprocket. ・It is recommended to replace the chain and both sprockets simultaneously! If the chain is stretched, simply replacing the sprocket alone will cause the new sprocket to wear unevenly to match the stretched chain's pitch, not only preventing optimal performance but ultimately shortening the replacement cycle. Compatible models/years: YAMAHA YZ125/'99-'09, YZ250/'99-'09, YZ426/'99-'09, YZ450F/'99-'09, WR250R/'08-'09, WR250X/'08-'09, WR250/'99-'07, WR400F/'99-'07 Type: Rear Size: 520 Number of teeth: 52 Color: Magnesium *Images are for illustration purposes only. The design and specifications of the products shown may change without prior notice. Thank you for your understanding.